111366361 has 2 divisors, whose sum is σ = 111366362. Its totient is φ = 111366360.

The previous prime is 111366347. The next prime is 111366377. The reversal of 111366361 is 163663111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103632400 + 7733961 = 10180^2 + 2781^2 .

It is a cyclic number.

It is not a de Polignac number, because 111366361 - 2¹⁹ = 110842073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111366331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55683180 + 55683181.

It is an arithmetic number, because the mean of its divisors is an integer number (55683181).

Almost surely, 2^111366361 is an apocalyptic number.

It is an amenable number.

111366361 is a deficient number, since it is larger than the sum of its proper divisors (1).

111366361 is an equidigital number, since it uses as much as digits as its factorization.

111366361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 28.

The square root of 111366361 is about 10553.0261536680. The cubic root of 111366361 is about 481.1177092724.

The spelling of 111366361 in words is "one hundred eleven million, three hundred sixty-six thousand, three hundred sixty-one".